dosfstools up to 3.x Filesystem boot.c get_fat memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability was found in dosfstools up to 3.x. It has been declared as critical. Impacted is the function get_fat of the file boot.c of the component Filesystem Handler. Executing a manipulation can lead to memory corruption. This vulnerability is registered as CVE-2016-4804. The attack needs to be launched locally. No exploit is available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in dosfstools up to 3.x. It has been declared as critical. This vulnerability affects the function get_fat of the file boot.c of the component Filesystem Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The read_boot function in boot.c in dosfstools before 4.0 allows attackers to cause a denial of service (crash) via a crafted filesystem, which triggers a heap-based buffer overflow in the (1) read_fat function or an out-of-bounds heap read in (2) get_fat function.

The weakness was published 06/03/2016 (Website). The advisory is available at github.com. This vulnerability was named CVE-2016-4804 since 05/14/2016. The exploitation appears to be easy. Local access is required to approach this attack. No form of authentication is required for a successful exploitation. Technical details are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 91439 (openSUSE Security Update : dosfstools (openSUSE-2016-671)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family SuSE Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196485 (Ubuntu Security Notification for Dosfstools Vulnerabilities (USN-2986-1)).

Upgrading to version 4.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (91439) and SecurityFocus (BID 90311†). Similar entry is available at VDB-87722. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.2
VulDB Meta Temp Score: 6.1

VulDB Base Score: 6.2
VulDB Temp Score: 5.9
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.2
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 91439
Nessus Name: openSUSE Security Update : dosfstools (openSUSE-2016-671)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 860693
OpenVAS Name: Fedora Update for dosfstools FEDORA-2016-e2d635cbf8
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: dosfstools 4.0
Patch: github.com

Timelineinfo

05/08/2016 🔍
05/14/2016 +6 days 🔍
06/01/2016 +18 days 🔍
06/02/2016 +1 days 🔍
06/03/2016 +1 days 🔍
06/03/2016 +0 days 🔍
06/04/2016 +1 days 🔍
08/22/2022 +2270 days 🔍

Sourcesinfo

Product: github.com

Advisory: USN-2986-1
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-4804 (🔍)
GCVE (CVE): GCVE-0-2016-4804
GCVE (VulDB): GCVE-100-87730
SecurityFocus: 90311 - dosfstools Multiple Security Vulnerabilities

See also: 🔍

Entryinfo

Created: 06/04/2016 12:27
Updated: 08/22/2022 20:34
Changes: 06/04/2016 12:27 (64), 01/01/2019 12:44 (14), 08/22/2022 20:34 (4)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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